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| 1 | +// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=WITHOUT %s |
| 2 | +// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=type | FileCheck -check-prefix=TYSAN %s |
| 3 | +// RUN: echo "src:%s" | sed -e 's/\\/\\\\/g' > %t |
| 4 | +// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=type -fsanitize-blacklist=%t | FileCheck -check-prefix=BL %s |
| 5 | + |
| 6 | +// The sanitize_type attribute should be attached to functions |
| 7 | +// when TypeSanitizer is enabled, unless no_sanitize("type") attribute |
| 8 | +// is present. |
| 9 | + |
| 10 | +// WITHOUT: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] |
| 11 | +// BL: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] |
| 12 | +// TYSAN: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] |
| 13 | +__attribute__((no_sanitize("type"))) int NoTYSAN1(int *a) { return *a; } |
| 14 | + |
| 15 | +// WITHOUT: NoTYSAN2{{.*}}) [[NOATTR]] |
| 16 | +// BL: NoTYSAN2{{.*}}) [[NOATTR]] |
| 17 | +// TYSAN: NoTYSAN2{{.*}}) [[NOATTR]] |
| 18 | +__attribute__((no_sanitize("type"))) int NoTYSAN2(int *a); |
| 19 | +int NoTYSAN2(int *a) { return *a; } |
| 20 | + |
| 21 | +// WITHOUT: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] |
| 22 | +// BL: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] |
| 23 | +// TYSAN: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] |
| 24 | +__attribute__((no_sanitize("type"))) int NoTYSAN3(int *a) { return *a; } |
| 25 | + |
| 26 | +// WITHOUT: TYSANOk{{.*}}) [[NOATTR]] |
| 27 | +// BL: TYSANOk{{.*}}) [[NOATTR]] |
| 28 | +// TYSAN: TYSANOk{{.*}}) [[WITH:#[0-9]+]] |
| 29 | +int TYSANOk(int *a) { return *a; } |
| 30 | + |
| 31 | +// WITHOUT: TemplateTYSANOk{{.*}}) [[NOATTR]] |
| 32 | +// BL: TemplateTYSANOk{{.*}}) [[NOATTR]] |
| 33 | +// TYSAN: TemplateTYSANOk{{.*}}) [[WITH]] |
| 34 | +template <int i> |
| 35 | +int TemplateTYSANOk() { return i; } |
| 36 | + |
| 37 | +// WITHOUT: TemplateNoTYSAN{{.*}}) [[NOATTR]] |
| 38 | +// BL: TemplateNoTYSAN{{.*}}) [[NOATTR]] |
| 39 | +// TYSAN: TemplateNoTYSAN{{.*}}) [[NOATTR]] |
| 40 | +template <int i> |
| 41 | +__attribute__((no_sanitize("type"))) int TemplateNoTYSAN() { return i; } |
| 42 | + |
| 43 | +int force_instance = TemplateTYSANOk<42>() + TemplateNoTYSAN<42>(); |
| 44 | + |
| 45 | +// Check that __cxx_global_var_init* get the sanitize_type attribute. |
| 46 | +int global1 = 0; |
| 47 | +int global2 = *(int *)((char *)&global1 + 1); |
| 48 | +// WITHOUT: @__cxx_global_var_init{{.*}}[[NOATTR:#[0-9]+]] |
| 49 | +// BL: @__cxx_global_var_init{{.*}}[[NOATTR:#[0-9]+]] |
| 50 | +// TYSAN: @__cxx_global_var_init{{.*}}[[WITH:#[0-9]+]] |
| 51 | + |
| 52 | +// Make sure that we don't add globals to the list for which we don't have a |
| 53 | +// specific type description. |
| 54 | +// FIXME: We now have a type description for this type and a global is added. Should it? |
| 55 | +struct SX { |
| 56 | + int a, b; |
| 57 | +}; |
| 58 | +SX sx; |
| 59 | + |
| 60 | +// WITHOUT: attributes [[NOATTR]] = { noinline nounwind{{.*}} } |
| 61 | + |
| 62 | +// BL: attributes [[NOATTR]] = { noinline nounwind{{.*}} } |
| 63 | + |
| 64 | +// TYSAN: attributes [[NOATTR]] = { mustprogress noinline nounwind{{.*}} } |
| 65 | +// TYSAN: attributes [[WITH]] = { noinline nounwind sanitize_type{{.*}} } |
| 66 | + |
| 67 | +// TYSAN-DAG: !llvm.tysan.globals = !{[[G1MD:![0-9]+]], [[G2MD:![0-9]+]], [[G3MD:![0-9]+]], [[SXMD:![0-9]+]]} |
| 68 | +// TYSAN-DAG: [[G1MD]] = !{ptr @force_instance, [[INTMD:![0-9]+]]} |
| 69 | +// TYSAN-DAG: [[INTMD]] = !{!"int", |
| 70 | +// TYSAN-DAG: [[G2MD]] = !{ptr @global1, [[INTMD]]} |
| 71 | +// TYSAN-DAG: [[G3MD]] = !{ptr @global2, [[INTMD]]} |
| 72 | +// TYSAN-DAG: [[SXMD]] = !{ptr @sx, [[SXTYMD:![0-9]+]]} |
| 73 | +// TYSAN-DAG: [[SXTYMD]] = !{!"_ZTS2SX", [[INTMD]], i64 0, !1, i64 4} |
| 74 | +// TYSAN-DAG: Simple C++ TBAA |
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